Push-Lock Suction Disk Structure for Stable Wall Adsorption

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Solution Overview

Problem

Existing suction disk structures require large rotary force, are complex, and often fail to maintain a strong and stable adsorption, leading to loose attachment and potential falling of hung articles.

Innovation Solution

A suction disk structure featuring a soft rubber suction disk with a draw bar, base, and return spring, utilizing an inclined step pushing type driving device where the pin shaft is moved up and down along inclined steps to drive the draw bar, enhancing adsorption force and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a rotary rise-fall driving device (screw or rotary ladder type) is used to drive the draw bar, then the suction disk can achieve adsorption and release functions, but the structure becomes complex and large rotary force is required

Engineering Contradiction:
Improveease of operationVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the complex rotary mechanical driving device (screw or rotary ladder type) with a simple push-button mechanical system. The push button directly pushes the pin shaft to move the draw bar axially, eliminating the need for rotary motion and complex mechanical transmission components, thus simplifying the overall structure while maintaining the adsorption-release function

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts and removes the unnecessary rotary driving mechanism from the system, keeping only the essential axial movement function. By taking out the complex rotary ladder support or screw mechanism and retaining only the direct push-rod structure, the design achieves structural simplification while preserving the core functionality

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If a rotary rise-fall driving device is used, then the suction disk can be operated, but the draw bar cannot be moved up and down in position due to insufficient rotation, resulting in loose adsorption

Engineering Contradiction:
Improveadsorption stabilityVSAvoidoperation convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent substitutes the rotary mechanical system with a direct axial push mechanism. The push button moves linearly to push the pin shaft, ensuring reliable axial movement of the draw bar without the limitations of rotary motion. This direct linear actuation guarantees sufficient travel distance for tight adsorption while maintaining simple operation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Instead of using rotary motion to achieve axial movement (as in screw or rotary ladder mechanisms), the patent inverts the approach by using direct axial motion to achieve the same result. The push button's linear movement directly translates to the draw bar's axial displacement, ensuring reliable positioning and tight adsorption

Inventive Principle:
Principle #13The other way round (Inversion)

3Ease of operation

If a rotary rise-fall driving device is used, then the suction disk can function, but large rotary force is required making operation difficult

Engineering Contradiction:
Improveoperation easeVSAvoidrotary force required
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The patent replaces the rotary mechanical system requiring large torque with a simple linear push system. The push button directly applies axial force to the pin shaft, eliminating the need for large rotary forces and complex mechanical advantage mechanisms, thus making operation easier and more intuitive

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides a strong and stable adsorption force, preventing articles from falling and simplifying operation, while maintaining a tidy and aesthetically pleasing design.

Implementation Method 1

a return spring (3) located between the soft rubber suction disk (1) and the base (2)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a soft rubber suction disk (1) with a draw bar (11)... driving the draw bar (11) to rise and fall to drive the soft rubber suction disk (1), to thereby achieving an adsorption state and a release state

Methodology Applied
Scientific EffectVacuum: Vacuum

Data Source

PatentUS9091294B2Suction disk structure
Publication Date: 2015.07.28 ANHO HOUSEWARE CO LTD JIANGMEN
  • US9091294B2 patent drawing
  • US9091294B2 patent drawing
  • US9091294B2 patent drawing

AI summary

A suction disk structure including: a soft rubber suction disk (1) with a draw bar (11), a base (2) provided on a back face of the soft rubber suction disk (1) and a return spring (3) located between the soft rubber suction disk (1) and the base (2). Two sides of an end of the draw bar (11) is provided with a pin shaft (12) radially extended, and the suction disk further includes a driving device (4) for driving the draw bar (11) to rise and fall. The driving device (4) comprises a pushing switch (41) mounted on the base (2) and a driving slide cover (5) connected with the pushing switch. The pin shaft (12) can be driven to move up and down along the inclined step (43) at the center of the driving device, and the pin shaft (12) is moved up and down along the inclined step (43) and can be stopped on the upper and lower end supporting surfaces of the inclined step, respectively, thereby driving the draw bar (11) to rise and fall to drive the soft rubber suction disk, to thereby achieving an adsorption state and a release state. The pushing switch (41) can be easily pushed to the end to be is in a self-locking state, and the suction disk structure has a strong adsorption force and is easy to operate.